Class: RuboCop::AST::CaseMatchNode

Inherits:
Node
  • Object
show all
Includes:
ConditionalNode
Defined in:
lib/rubocop/ast/node/case_match_node.rb

Overview

A node extension for ‘case_match` nodes. This will be used in place of a plain node when the builder constructs the AST, making its methods available to all `case_match` nodes within RuboCop.

Constant Summary

Constants inherited from Node

Node::ASSIGNMENTS, Node::BASIC_CONDITIONALS, Node::BASIC_LITERALS, Node::COMPARISON_OPERATORS, Node::COMPOSITE_LITERALS, Node::CONDITIONALS, Node::EQUALS_ASSIGNMENTS, Node::FALSEY_LITERALS, Node::IMMUTABLE_LITERALS, Node::KEYWORDS, Node::LITERALS, Node::MUTABLE_LITERALS, Node::OPERATOR_KEYWORDS, Node::REFERENCES, Node::SHORTHAND_ASSIGNMENTS, Node::SPECIAL_KEYWORDS, Node::TRUTHY_LITERALS, Node::VARIABLES

Instance Method Summary collapse

Methods included from ConditionalNode

#body, #condition, #multiline_condition?, #single_line_condition?

Methods inherited from Node

#ancestors, #argument?, #assignment?, #basic_conditional?, #basic_literal?, #boolean_type?, #call_type?, #chained?, #child_nodes, #complete!, #complete?, #conditional?, #const_name, #defined_module, #defined_module_name, #descendants, #each_ancestor, #each_child_node, #each_descendant, #each_node, #empty_source?, #equals_asgn?, #falsey_literal?, #first_line, #guard_clause?, #immutable_literal?, #initialize, #keyword?, #last_line, #line_count, #literal?, #multiline?, #mutable_literal?, #node_parts, #nonempty_line_count, #numeric_type?, #operator_keyword?, #parent, #parent_module_name, #parenthesized_call?, #pure?, #range_type?, #receiver, #reference?, #shorthand_asgn?, #sibling_index, #single_line?, #source, #source_length, #source_range, #special_keyword?, #truthy_literal?, #updated, #value_used?, #variable?

Methods included from NodePattern::Macros

#def_node_matcher, #def_node_search, #node_search, #node_search_all, #node_search_body, #node_search_first

Methods included from Sexp

#s

Constructor Details

This class inherits a constructor from RuboCop::AST::Node

Instance Method Details

#each_in_pattern ⇒ self, Enumerator

Calls the given block for each ‘in_pattern` node in the `in` statement. If no block is given, an `Enumerator` is returned.

Returns:

  • (self) —

    if a block is given

  • (Enumerator) —

    if no block is given



23
24
25
26
27
28
29
30
31
 
# File 'lib/rubocop/ast/node/case_match_node.rb', line 23

def each_in_pattern
  return in_pattern_branches.to_enum(__method__) unless block_given?

  in_pattern_branches.each do |condition|
    yield condition
  end

  self
end

#else? ⇒ Boolean

Checks whether this case statement has an ‘else` branch.

Returns:

  • (Boolean) —

    whether the ‘case` statement has an `else` branch



51
52
53
 
# File 'lib/rubocop/ast/node/case_match_node.rb', line 51

def else?
  !loc.else.nil?
end

#else_branch ⇒ Node?

Returns the else branch of the ‘case` statement, if any.

Returns:

  • (Node) —

    the else branch node of the ‘case` statement

  • (nil) —

    if the case statement does not have an else branch.



44
45
46
 
# File 'lib/rubocop/ast/node/case_match_node.rb', line 44

def else_branch
  node_parts[-1]
end

#in_pattern_branches ⇒ Array<Node>

Returns an array of all the when branches in the ‘case` statement.

Returns:

  • (Array<Node>) —

    an array of ‘in_pattern` nodes



36
37
38
 
# File 'lib/rubocop/ast/node/case_match_node.rb', line 36

def in_pattern_branches
  node_parts[1...-1]
end

#keyword ⇒ String

Returns the keyword of the ‘case` statement as a string.

Returns:

  • (String) —

    the keyword of the ‘case` statement



14
15
16
 
# File 'lib/rubocop/ast/node/case_match_node.rb', line 14

def keyword
  'case'
end